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-rw-r--r--fs/btrfs/volumes.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 6f5b302..217c42e 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5161,7 +5161,9 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
BTRFS_BLOCK_GROUP_RAID6)) {
u64 tmp;
- if (raid_map_ret && ((rw & REQ_WRITE) || mirror_num > 1)) {
+ if (raid_map_ret &&
+ ((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) ||
+ mirror_num > 1)) {
int i, rot;
/* push stripe_nr back to the start of the full stripe */
@@ -5440,6 +5442,16 @@ int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
mirror_num, NULL);
}
+/* For Scrub/replace */
+int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int rw,
+ u64 logical, u64 *length,
+ struct btrfs_bio **bbio_ret, int mirror_num,
+ u64 **raid_map_ret)
+{
+ return __btrfs_map_block(fs_info, rw, logical, length, bbio_ret,
+ mirror_num, raid_map_ret);
+}
+
int btrfs_rmap_block(struct btrfs_mapping_tree *map_tree,
u64 chunk_start, u64 physical, u64 devid,
u64 **logical, int *naddrs, int *stripe_len)
@@ -5809,7 +5821,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
} else {
ret = raid56_parity_recover(root, bio, bbio,
raid_map, map_length,
- mirror_num);
+ mirror_num, 0);
}
/*
* FIXME, replace dosen't support raid56 yet, please fix
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